A problem for prosecutors: 78-year-old entertainment attorney Seymour Lazar, who's at the center of the investigation as the one alleged to have taken referral payments from the giant class-action firm, is so seriously ill that he may have little to fear from continued refusal to cooperate. A judge has released Lazar from house arrest. Josh Gerstein at the New York Sun has details. P.S. here's more on the challenges facing prosecutors, from Justin Scheck at The Recorder/Law.com.